Successful One-Stage Operative Resection of an Intravenous Leiomyomatosis Involving the Right-Sided Heart Chambers and Pulmonary Artery.

Intravenous leiomyomatosis (IVL) is a rare neoplastic disorder. It may extend into the right cardiac chambers, which are named after intracardiac leiomyomatosis (ICL). We describe a case of IVL extending into the right heart and pulmonary artery in a 46-year-old woman. The patient successfully underwent a one-stage operation under cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest. The patient fully recovered without major complications and did not exhibit any recurrence at the 9-month follow-up. The unique feature of this case is its involvement with the pulmonary artery, which is uncommon but potentially lethal.